I don't usually play in the Crucible, but every month when IB comes out I'm in and love it. I think its the loot you can get that drove me to it earlier, plus the armor that helped me get to 34. There's something different about the gameplay between regular crucible and IB, not sure what, but feels different. I guess it helps that I've learned the maps and know which points to cap. I just wish everybody else knew this so we wouldn't have so much spawn switching going on. Thats really aggravating, but overall IB is a really cool part of the game.